Well, I've been asking myself this question for quite a long time by now.
I started using the GNU Fortran compiler (gfortran) and I was quite happy. But then I started hearing that the Intel Fortran compiler (ifort) was better because it was optimized for Intel processors (and therefore optimized for most computers today as a consequence that Intel has the greater share of the market).
I am trying to install gfortran in my computer with Ubuntu 12.04 by using these commands,
apt-get install gfortran
but I found the program saying "unable to locate package gfortran".
Then on a Ubuntu page I found some question regarding the same problem and I went through the solution from them but again I couldn't install the gfortran package.
I am using Ubuntu 12.04 LTS (32bit-i386) in my desktop PC. I need g77 compiler for some specific applications. The app can only be installed after having g77 compiler. This specific app is designed based on g77 fortran compiler and can't be used with gfortran which is the standard available compiler in 12.04 LTS.
And guide me the procedure to install g77 in 12.04.
I have the gfortran, but I have been told that gfortran versions 4.2 and older lacked some f90 functionality. How do I determine which version is already installed? Also, can I install the latest version even if I don't have superuser priviledges?
The problem is strange for me, I have fresh installed openSUSE 11.3 after that my fortran codes using gfortran compiler gives different output. The same codes gives correct values in windows but I use linux for programming.
I hope my message will get read soon and somebody will give me a solution.
I use fortran to do simulation and gfortran is the compiler I use. Recently I migrated from Ubuntu 10.10 to 12.10. After installing gfortran then I tried to compile and run my fortran programs then the problem started. I successfully compiled the program but I am unable to execute it.